#include <stdio.h>
int main ()
{
	int num ;
	int i ;
	for (;;)
		{
			printf("please enter a positive integer\n");
			scanf("%d",&num);
			if (num >0)
			break;
			printf("Input errer\n");
		}
	for (i=1;i<=5;i++)
		{
			printf ("Please enter a integer\n");
			scanf ("%d",&num);
			if (num %5 == 0){
				printf ("This number is a multiple of 5\n");
				} else {
					printf ("This number is not a multiple of 5\n");
				}
		}
		return 0;
}